WireMock.Net-wiremock/test/WireMock.Net.Tests/ResponseBuilders/ResponseWithHandlebarsLinqTests.cs

using System;
using System.Threading.Tasks;
using FluentAssertions;
using HandlebarsDotNet;
using Moq;
using Newtonsoft.Json.Linq;
using NFluent;
using WireMock.Handlers;
using WireMock.Models;
using WireMock.ResponseBuilders;
using WireMock.Settings;
using WireMock.Types;
using WireMock.Util;
using Xunit;

namespace WireMock.Net.Tests.ResponseBuilders
{
    public class ResponseWithHandlebarsLinqTests
    {
        private readonly Mock<IFileSystemHandler> _filesystemHandlerMock;
        private readonly WireMockServerSettings _settings = new WireMockServerSettings();

        public ResponseWithHandlebarsLinqTests()
        {
            _filesystemHandlerMock = new Mock<IFileSystemHandler>(MockBehavior.Strict);
            _filesystemHandlerMock.Setup(fs => fs.ReadResponseBodyAsString(It.IsAny<string>())).Returns("abc");

            _settings.FileSystemHandler = _filesystemHandlerMock.Object;
        }

        [Fact]
        public async Task Response_ProvideResponse_Handlebars_Linq1_String0()
        {
            // Assign
            var body = new BodyData();

            var request = new RequestMessage(new UrlDetails("http://localhost:1234/pathtest"), "POST", "::1", body);

            var response = Response.Create()
                .WithHeader("Content-Type", "application/json")
                .WithBodyAsJson(new { x = "{{Linq request.Path 'it'}}" })
                .WithTransformer();

            // Act
            var responseMessage = await response.ProvideResponseAsync(request, _settings);

            // Assert
            JObject j = JObject.FromObject(responseMessage.BodyData.BodyAsJson);
            Check.That(j["x"]).IsNotNull();
            Check.That(j["x"].ToString()).Equals("/pathtest");
        }

        [Fact]
        public async Task Response_ProvideResponse_Handlebars_Linq1_String1()
        {
            // Assign
            var body = new BodyData
            {
                BodyAsJson = new JObject
                {
                    { "Id", new JValue(9) },
                    { "Name", new JValue("Test") }
                },
                DetectedBodyType = BodyType.Json
            };

            var request = new RequestMessage(new UrlDetails("http://localhost:1234"), "POST", "::1", body);

            var response = Response.Create()
                .WithHeader("Content-Type", "application/json")
                .WithBodyAsJson(new { x = "{{Linq request.bodyAsJson 'it.Name + \"_123\"' }}" })
                .WithTransformer();

            // Act
            var responseMessage = await response.ProvideResponseAsync(request, _settings);

            // Assert
            JObject j = JObject.FromObject(responseMessage.BodyData.BodyAsJson);
            Check.That(j["x"]).IsNotNull();
            Check.That(j["x"].ToString()).Equals("Test_123");
        }

        [Fact]
        public async Task Response_ProvideResponse_Handlebars_Linq1_String2()
        {
            // Assign
            var body = new BodyData
            {
                BodyAsJson = new JObject
                {
                    { "Id", new JValue(9) },
                    { "Name", new JValue("Test") }
                },
                DetectedBodyType = BodyType.Json
            };

            var request = new RequestMessage(new UrlDetails("http://localhost:1234"), "POST", "::1", body);

            var response = Response.Create()
                .WithHeader("Content-Type", "application/json")
                .WithBodyAsJson(new { x = "{{Linq request.bodyAsJson 'new(it.Name + \"_123\" as N, it.Id as I)' }}" })
                .WithTransformer();

            // Act
            var responseMessage = await response.ProvideResponseAsync(request, _settings);

            // Assert
            JObject j = JObject.FromObject(responseMessage.BodyData.BodyAsJson);
            Check.That(j["x"]).IsNotNull();
            Check.That(j["x"].ToString()).Equals("{ N = Test_123, I = 9 }");
        }

        [Fact]
        public async Task Response_ProvideResponse_Handlebars_Linq2_Object()
        {
            // Assign
            var body = new BodyData
            {
                BodyAsJson = new JObject
                {
                    { "Id", new JValue(9) },
                    { "Name", new JValue("Test") }
                },
                DetectedBodyType = BodyType.Json
            };

            var request = new RequestMessage(new UrlDetails("http://localhost:1234"), "POST", "::1", body);

            var response = Response.Create()
                .WithHeader("Content-Type", "application/json")
                .WithBodyAsJson(new { x = "{{#Linq request.bodyAsJson 'new(it.Name + \"_123\" as N, it.Id as I)' }}{{this}}{{/Linq}}" })
                .WithTransformer();

            // Act
            var responseMessage = await response.ProvideResponseAsync(request, _settings);

            // Assert
            JObject j = JObject.FromObject(responseMessage.BodyData.BodyAsJson);
            Check.That(j["x"]).IsNotNull();
            Check.That(j["x"].ToString()).Equals("{ N = Test_123, I = 9 }");
        }

        [Fact]
        public void Response_ProvideResponse_Handlebars_Linq_Throws_ArgumentException()
        {
            // Assign
            var body = new BodyData
            {
                BodyAsJson = new { x = "x" },
                DetectedBodyType = BodyType.Json
            };

            var request = new RequestMessage(new UrlDetails("http://localhost:1234"), "POST", "::1", body);

            var response = Response.Create()
                .WithBodyAsJson(new { x = "{{Linq request.bodyAsJson 1}}" })
                .WithTransformer();

            // Act
            Check.ThatAsyncCode(() => response.ProvideResponseAsync(request, _settings)).Throws<ArgumentException>();
        }

        [Fact]
        public void Response_ProvideResponse_Handlebars_Linq1_Throws_ArgumentNullException()
        {
            // Assign
            var body = new BodyData();

            var request = new RequestMessage(new UrlDetails("http://localhost:1234"), "POST", "::1", body);

            var response = Response.Create()
                .WithBodyAsJson(new { x = "{{Linq request.body 'Name'}}" })
                .WithTransformer();

            // Act
            Check.ThatAsyncCode(() => response.ProvideResponseAsync(request, _settings)).Throws<ArgumentNullException>();
        }

        [Fact]
        public void Response_ProvideResponse_Handlebars_Linq1_Throws_HandlebarsException()
        {
            // Assign
            var body = new BodyData();

            var request = new RequestMessage(new UrlDetails("http://localhost:1234"), "POST", "::1", body);

            var response = Response.Create()
                .WithBodyAsJson(new { x = "{{Linq request.bodyAsJson}} ''" })
                .WithTransformer();

            // Act
            Check.ThatAsyncCode(() => response.ProvideResponseAsync(request, _settings)).Throws<HandlebarsException>();
        }

        [Fact]
        public void Response_ProvideResponse_Handlebars_Linq1_ParseError_Throws_ExceptionMessage()
        {
            // Assign
            var body = new BodyData
            {
                BodyAsJson = new JObject
                {
                    { "Id", new JValue(9) },
                    { "Name", new JValue("Test") }
                },
                DetectedBodyType = BodyType.Json
            };

            var request = new RequestMessage(new UrlDetails("http://localhost:1234"), "POST", "::1", body);

            var response = Response.Create()
                .WithBodyAsJson(new { x = "{{Linq request.bodyAsJson '---' }}" })
                .WithTransformer();

            // Act
            Func<Task> a = async () => await response.ProvideResponseAsync(request, _settings);

            // Assert
            a.Should().Throw<HandlebarsException>();
        }

        [Fact]
        public void Response_ProvideResponse_Handlebars_Linq2_ParseError_Throws_ExceptionMessage()
        {
            // Assign
            var body = new BodyData
            {
                BodyAsJson = new JObject
                {
                    { "Id", new JValue(9) },
                    { "Name", new JValue("Test") }
                },
                DetectedBodyType = BodyType.Json
            };

            var request = new RequestMessage(new UrlDetails("http://localhost:1234"), "POST", "::1", body);

            var response = Response.Create()
                .WithBodyAsJson(new { x = "{{#Linq request.bodyAsJson '---' }}{{this}}{{/Linq}}" })
                .WithTransformer();

            // Act
            Func<Task> a = async () => await response.ProvideResponseAsync(request, _settings);

            // Assert
            a.Should().Throw<HandlebarsException>();
        }
    }
}